in premises intended for the administration of food and drinks, such as bars, restaurants, pizzerias, etc., unless they are equipped with special separate and ventilated spaces for smokers
My poor description would put it somewhere between something made by Gawith Hoggarth and the old version of St Bruno
-Gabriele HI Gabriele, HVAC filters dont filter cigarette smoke very well, so the discoloration of the filter would depend upon the volume of smoke going through the system and how much time the system is running and pulling air through the air handler
What you can do: If you are sick, be extra mindful of your blood sugar and make sure you measure your ketone bodies
They are, however, the closest numbers based on the official color codes provided